Search found 57 matches

by wookey
Sun Apr 20, 2025 2:41 am
Forum: Solar Systems
Topic: Flexible panels
Replies: 6
Views: 432

Re: Flexible panels

We had a 100W stick on panel on our Mazda Bongo for around 5 years. Worked well, no complaints. OK, good to hear those panels _can_ last for a reasonable period of time. I'd advise a Victron charge controller for their robust build and high efficiency and as much panel as you can fit. With hindsigh...
by wookey
Sun Apr 20, 2025 1:50 am
Forum: Photovoltaic
Topic: Myenergi would love to hear my thoughts - NOT
Replies: 5
Views: 600

Re: Myenergi would love to hear my thoughts - NOT

I'm afraid they deserve everything they get for trying to keep people locked into a proprietary system. OK, so are most of the other outfits, but MyEnergi managed to annoy me more than most. It's a pity but we _really_ need more interoperability in this field. More power to Pylontech, Fogstar, Victr...
by wookey
Sat Apr 19, 2025 12:42 pm
Forum: Solar Systems
Topic: Flexible panels
Replies: 6
Views: 432

Flexible panels

Does anyone have reasonably long-term experience of flexible panels on vehicles? There are a lot of different panel types out there, of varying robustness. Numerous tales of failed panels, but also some happy customers. I have a camper (with an almost flat, but ribbed, pop-top roof), and am wading t...
by wookey
Fri Mar 21, 2025 11:42 pm
Forum: Photovoltaic
Topic: One warm panel?
Replies: 4
Views: 478

Re: One warm panel?

Actually they are physically wired alternately, so the partly-shaded one immediately below is the start of the other DC string. The one to the right of that is the 2nd one in the 1st string and so on, in an A/B wiring pattern. The orange lines in this diagram show how it's wired. http://wookware.org...
by wookey
Fri Mar 21, 2025 6:15 pm
Forum: Photovoltaic
Topic: One warm panel?
Replies: 4
Views: 478

One warm panel?

We took this pic at 7am a couple of days ago. The frost shows that one panel is significantly warmer than the others. Anyone know why that might be? The top-right 6 panels are one string on AC-inverter. Then other 8 are a 4x2 DC array, so the melted one is one end of one of the two parallel DC strin...
by wookey
Sun Dec 22, 2024 3:58 pm
Forum: Photovoltaic
Topic: Upgrading a FIT/MCS PV+ST system to PV only + battery
Replies: 18
Views: 7094

Re: Upgrading a FIT/MCS PV+ST system to PV only + battery

Also don't buy the (expensive) dongle, you can configure everything over VRM. You mean the VE.Bus<->USB dongle? But the Multiplus II can't talk to VRM without one of those to connect it to the (whatever)GX so you have to have at least one of these £60 dongles SFAICS. And yes that is annoying. The R...
by wookey
Sun Dec 22, 2024 3:49 pm
Forum: Energy storage, batteries, energy tariffs
Topic: Victron Config software passwords
Replies: 2
Views: 1157

Re: Victron Config software passwords

Just to complete the thread that 'ZZZ' did work and I am now running the house through the Multiplus with an RPi4 VenusOS GX, all firmwares updated and the ESS assistant installed, and configured for a UK grid.
by wookey
Sat Dec 21, 2024 5:03 pm
Forum: Energy storage, batteries, energy tariffs
Topic: Victron Config software passwords
Replies: 2
Views: 1157

Re: Victron Config software passwords

Aha, apparently searching works much better back in Linux. Found it almost immediately using DDG (whilst I failed for over an hour in Windows): https://communityarchive.victronenergy.com/questions/17967/victronconnect-1.html Also documented in the 'how to get root access to your venusOS controller':...
by wookey
Sat Dec 21, 2024 4:56 pm
Forum: Energy storage, batteries, energy tariffs
Topic: Victron Config software passwords
Replies: 2
Views: 1157

Victron Config software passwords

I finally got to the point of configuring my inverter, and find that the Victronconnect software hides a lot of the config options behind an 'installer password', and the VE Configure software sets a pasword for further changes once you have configured a grid type/location. So you can't change it ag...
by wookey
Sat Dec 21, 2024 4:18 pm
Forum: Energy storage, batteries, energy tariffs
Topic: Economics of charging at 7p and exporting at 15p
Replies: 48
Views: 10763

Re: Economics of charging at 7p and exporting at 15p

I've not actually done any of this yet as I'm still building the system and controls (just about done with system - now on to controls). But I did some approximate sums before starting to check that it made some sense. (I had done battery sums a few years ago and decided they didn't make any financi...